1FCTL(1)                          LAM COMMANDS                          FCTL(1)
2
3
4

NAME

6       fctl - Control a LAM remote file daemon.
7

SYNTAX

9       fctl [-hS] [-s <descno>] <nodes> [<newdir>]
10

OPTIONS

12       -h            Print the command help menu.
13
14       -S            Sweep out all but the standard filed descriptors.
15
16       -s <descno>   Sweep out the given filed descriptor.
17
18       <nodes>       Direct command to filed on these nodes.
19
20       <newdir>      Change to new working directory.
21

DESCRIPTION

23       Most MPI users will probably not need to use the fctl command; see lam‐
24       clean(1).  This command is only installed  if  LAM/MPI  was  configured
25       with the --with-trillium switch.
26
27       The  fctl command controls important file daemon (filed) attributes and
28       support features.  With no options, fctl reports  the  current  working
29       directory  that  is prepended to all partial pathnames on rfopen(2).  A
30       file name on the command line becomes the new working directory.
31
32       Another important role of fctl is cleaning the debris that can form  in
33       filed  in certain application crashes or bugs.  Any file descriptor can
34       be swept clean by indicating its handle (number) with  the  -c  option.
35       If  desired,  all descriptors, save stdio (0, 1, 2), can be cleaned and
36       filed effectively reset with the -S option.
37

EXAMPLE

39       fctl h data/set1
40           Change current working directory as indicated.
41
42       fctl h -s 4
43           Close and remove filed descriptor 4.
44

SEE ALSO

46       fstate(1), lamclean(1)
47
48
49
50LAM 7.1.2                         March, 2006                          FCTL(1)
Impressum